One-dimensional coherent fiber array for inspecting components in a gas turbine engine

A system for inspecting a turbine, comprising:

• a plurality of optical fibers having respective first ends positioned within a high temperature region of the turbine and having respective second ends positioned outside of the high temperature region of the turbine;
• wherein the respective first ends are aligned next to one another in a first one-dimensional array;
• wherein the respective second ends are aligned in a second one-dimensional array;
• the first one-dimensional array configured to receive, at the respective first ends, energy emitted from an image area on a component of the turbine, the image area comprising substantially a line, wherein the plurality of optical fibers are configured to convey the energy received at the respective first ends to the respective second ends;
• and
• a camera configured to simultaneously capture an image of each of the respective second ends.

A method of inspecting an operating turbine, comprising:

• positioning respective first ends of a plurality of optical fibers within a high temperature region of the turbine;
• receiving, at the respective first ends, energy emitted from an image area on a component of the turbine;
• routing the plurality of optical fibers through a vane of the turbine;
• conveying the energy received at the respective first ends to respective second ends of the plurality of optical fibers, the respective second ends located outside of the high temperature region of the turbine;
• and
• capturing, with a camera, an image simultaneously of each of the respective second ends.